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Al2O3 and AL3Zr enhanced aluminum base surface in-situ composite material and preparation method thereof

An in-situ composite material, zirconium trialuminide technology, applied in metal material coating process, coating, etc., can solve problems such as unfavorable reaction, insufficient particle contact, complex process steps, etc., to achieve sufficient reaction and accurate processing parameters The effect of simple control and process operation

Inactive Publication Date: 2013-09-18
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this patent, the chemical reaction occurs in the induction heating process instead of the friction stir processing process. The disadvantage is that the mixed powder needs to be ball milled before the friction stir processing, and the subsequent induction heating process is required after the friction stir processing to produce the chemical reaction. The process steps are complicated and the induction TiO during heating 2 and B 2 o 3 Insufficient particle contact is not conducive to the complete reaction

Method used

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  • Al2O3 and AL3Zr enhanced aluminum base surface in-situ composite material and preparation method thereof
  • Al2O3 and AL3Zr enhanced aluminum base surface in-situ composite material and preparation method thereof
  • Al2O3 and AL3Zr enhanced aluminum base surface in-situ composite material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0030] Base material: 10mm thick 6061 aluminum alloy plate.

[0031] Added particles: the average straight particle diameter is 80nm monoclinic zirconia, and the purity is 99.8%.

[0032] Three rows of blind holes are processed in the middle area of ​​the aluminum plate, the hole depth and diameter are both 4mm, and the hole spacing is 2mm.

[0033] The friction stir processing equipment is FSW-3LM-3012 gantry friction stir welding machine (developed by China Friction Stir Welding Center). Shaped groove, the stirring needle is conical and threaded, the root diameter is 6mm, the length is 4mm, and the pitch is 1mm.

[0034] Friction stir processing in-situ synthesis process parameters: rotation speed 900r / min, travel speed 60mm / min, downforce 0.1mm, inclination angle 2.5°, friction stir processing times 5 times, all 5 times along the same direction of travel.

[0035] The resulting (Al 2 o 3 +Al 3 Zr) particle reinforced aluminum matrix surface in situ composite material, ...

Embodiment 2

[0037] Base material: 10mm thick pure aluminum plate.

[0038] Added particles: the average straight particle diameter is 80nm monoclinic zirconia, and the purity is 99.8%.

[0039] Three rows of blind holes are processed in the middle area of ​​the aluminum plate, the hole depth and diameter are both 4mm, and the hole spacing is 2mm.

[0040]The friction stir processing equipment is FSW-3LM-3012 gantry friction stir welding machine (developed by China Friction Stir Welding Center). Shaped groove, the stirring needle is conical and threaded, the root diameter is 6mm, the length is 4mm, and the pitch is 1mm.

[0041] Friction stir processing in-situ synthesis process parameters: rotation speed 1000r / min, travel speed 50mm / min, down pressure 0.2mm, inclination angle 2°, friction stir processing times 4 times, all 4 times along the same travel direction.

[0042] The resulting (Al 2 o 3 +Al 3 Zr) particle reinforced aluminum matrix surface in situ composite material, Al 2 o...

Embodiment 3

[0044] Base material: 10mm thick 6061 aluminum alloy plate.

[0045] Added particles: the average straight particle diameter is 100nm monoclinic zirconia, and the purity is 99.8%.

[0046] Three rows of blind holes are processed in the middle area of ​​the aluminum plate, the hole depth and diameter are both 4mm, and the hole spacing is 2mm.

[0047] The friction stir processing equipment is FSW-3LM-3012 gantry friction stir welding machine (developed by China Friction Stir Welding Center). Shaped groove, the stirring needle is conical and threaded, the root diameter is 6mm, the length is 4mm, and the pitch is 1mm.

[0048] Friction stir processing in-situ synthesis process parameters: rotation speed 1200r / min, travel speed 40mm / min, down pressure 0.1mm, inclination angle 1.5°, the number of times of friction stir processing is 6 times, and the direction of travel of the two stirrings before and after 6 times is opposite .

[0049] The resulting (Al 2 o 3 +Al 3 Zr) parti...

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Abstract

The invention relates to a preparation method of an Al2O3 and AL3Zr enhanced aluminum base surface in-situ composite material. The preparation method comprises the following steps of: processing a plurality of blind holes or grooves in the surface of a base body; pouring zirconium oxide grains with the grain diameter between 10 nanometers and 10 micrometers into a volatile organic solvent; uniformly mixing, and then adding the mixture to the blind holes or grooves for tamping; fixing the base body on stirring and rubbing processing equipment; and stirring and rubbing the base body in a granule filling area through a stirring tool to generate a chemical reaction in a processing process and generate the granule enhanced aluminum base surface in-situ composite material. According to the prepared granule enhanced aluminum base surface in-situ composite material, Al2O3 and AL3Zr granules are uniformly distributed on a composite layer and are fine and less than 100 nanometers in size, the microhardness of the composite layer is about 2-3 times of that of a mother material, and the abrasion resistant property of the composite layer is obviously superior to that of the mother material.

Description

technical field [0001] The invention relates to the field of preparation methods of aluminum-based surface composite materials, in particular to a friction stir processing in-situ synthesis (Al 2 o 3 +Al 3 Zr) Particle Reinforced Aluminum Matrix Surface Composites. Background technique [0002] Aluminum and its alloys have the advantages of low density, high specific strength, good electrical and thermal conductivity, low cost, and easy processing. They are widely used in aerospace, automobile locomotives, machinery manufacturing, chemical industry and other fields. They are the most widely used in industries. Non-ferrous materials. However, aluminum and its alloys have low hardness and poor wear resistance, especially prone to severe adhesive wear, which limits their industrial application. [0003] Adding high-strength, high-hardness, high-modulus, and high-melting ceramic particles into the aluminum matrix to form an aluminum-based composite material can significantly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/00
Inventor 杨敏宋超群
Owner SHANDONG UNIV